So I'm planning to build myself a new pc. I've decided everything except what gpu should I buy. The 670 I'm choosing between is 2gb while the 7970 is 3gb. I'll probably be doing a lot of modding, ice enhancer, ENB and stuff. I won't be using multiple monitors and both the GPUs cosr about the same to me. I really need some advice :s.
EDIT: I'd like to know which one will perform better after being overclocked with a stock fan. The more opinions the better